Honeycomb automatic spraying and dipping device and using method thereof

Abstract

The invention discloses an automatic honeycomb spraying and dipping device and a using method thereof. The device comprises a rack, a glue solution recovery tank, a spraying device, a sealing cover, a turnover device and a stored material backflow device. The spraying device comprises a spraying head, a transverse rail and a longitudinal rail; the turnover device comprises a fixing frame and a transmission bearing, and the automatic spraying function and the turnover function are combined to achieve control over honeycomb density uniformity; the stored material backflow device comprises a material storage barrel, a flow guide pipe and a pneumatic diaphragm pump; the glue solution recovery tank comprises a tank body, a filter screen and a flow guide port, the stored material backflow device is matched with the glue solution recovery tank to achieve the glue solution self-purification recycling function, the glue solution use amount is greatly reduced, the cost of the high-temperature-resistant honeycomb core material is low, and novel honeycomb machining is facilitated. The device also has a self-cleaning function, and in the working and cleaning process, the whole device is a closed space, so that the solvent is effectively prevented from overflowing, and the environmental protection property and the safety of a working area are improved. The whole device is suitable for low-cost preparation of small-batch high-temperature-resistant honeycomb materials.

Description

Technical Field

[0001] The invention belongs to the technical field of honeycomb preparation, and relates to an automatic honeycomb spraying and impregnation device and a use method thereof, in particular to the impregnation and curing preparation of high temperature resistant honeycombs. Background Art

[0002] Honeycomb sandwich structures have the advantages of high specific strength, high specific stiffness, good fatigue resistance, good impact resistance and strong designability, and are widely used in the aerospace and aviation fields. With the improvement of aircraft performance, higher requirements are placed on the weight reduction efficiency and temperature resistance of the structure, so it is necessary to develop honeycomb sandwich composite materials that can withstand temperatures above 350°C.

[0003] Traditional corrugated paper honeycombs, aramid honeycombs, and aluminum honeycombs are limited by the performance of the substrate and the core strip adhesive, and the temperature resistance level is below 200°C. At 300°C, the substrate and the core strip adhesive decompose or the substrate performance seriously decays, resulting in a significant decrease in the mechanical properties of the honeycomb, which cannot meet the use requirements. Although laser welded titanium alloy honeycombs and high-temperature alloy steel honeycombs have excellent heat resistance and mechanical properties, their large volume, complex molding process, and high manufacturing cost limit their promotion and application. Therefore, it is imperative to develop and produce high-temperature resistant glass cloth honeycomb core materials.

[0004] The high-temperature resistant honeycomb core material currently developed is expensive, which limits its promotion and application to a certain extent. The cost composition is studied, among which the high-temperature resistant impregnation resin accounts for the highest proportion, which includes the cost of the impregnation resin itself and the loss cost of the impregnation resin. Under the premise of the existing impregnation resin, the resin loss cost should be reduced as much as possible.

[0005] Although the current honeycomb automated production line has high preparation efficiency, the cost of honeycomb impregnation is relatively high. The industry adopts an impregnation method in which the entire honeycomb is immersed in a resin solution. Since the honeycomb stack is large, this method requires more resin solution. Although the impregnated resin can be reused many times for industrial continuous production operations, thermosetting resins have a shelf life. All resin solutions approaching their service life must be scrapped, which not only increases the cost of raw material loss, but also increases environmental protection costs for hazardous waste liquid treatment. The existing industrial honeycomb impregnation equipment is a completely open mode, and the honeycomb impregnation and drying are all carried out in an open environment indoors. Therefore, the entire room needs to be treated for hazardous waste gas, which will further increase environmental protection costs. For high-temperature resistant honeycomb core materials, the cost of honeycomb impregnation is higher because it needs to be impregnated with expensive polyimide resin solution, which ultimately leads to high costs for high-temperature resistant honeycomb core materials.

[0006] In addition, during the experimental development stage, high temperature resistant impregnation resins are selected. If the traditional impregnation method is used, a large amount of resin solution will be wasted after a single trial. The experimental cost is high and it is not suitable for the replacement of small batches of multi-variety honeycomb core materials. Summary of the invention

[0007] The technical problem solved by the present application is: to overcome the deficiencies of the prior art, to provide a honeycomb automatic spraying and impregnation device and a method of using the device, and to achieve control of honeycomb density uniformity through the automatic spraying function and honeycomb flipping function of the device. The glue liquid self-purification and recycling function of the device greatly reduces the amount of glue liquid used, and the cost of high-temperature resistant honeycomb core materials is effectively controlled, which is also conducive to the development and improvement of new honeycombs. The self-cleaning function of the device can realize automatic cleaning of the spray device, and during the working and cleaning process, the entire device is a closed space, which effectively prevents solvent spillage and improves the environmental protection and safety of the working area.

[0008] The technical solutions provided by this application are as follows:

[0009] A honeycomb automatic spraying and impregnation device comprises a frame, a glue recovery tank, a spraying device, a sealing cover and a flipping device, wherein the glue recovery tank is fixedly connected to the frame, the flipping device comprises a fixing frame, the fixing frame is used to fix the honeycomb stack that is pulled apart, the fixing frame is horizontally rotatably connected to the glue recovery tank, the spraying device is installed in the glue recovery tank and is located above the flipping device, and the spraying device is used to spray glue; the sealing cover is arranged on the top of the glue recovery tank so that the spraying device and the flipping device are located in the sealed space formed by the glue recovery tank and the sealing cover.

[0010] The top of the glue recovery tank is open and the bottom is tapered downward so that the bottom of the tank is conical, and a conical bottom plate is provided at the bottom of the glue recovery tank. The conical bottom plate is provided with a guide port, and the glue in the glue recovery tank flows out from the guide port.

[0011] The top edge of the glue recovery tank is provided with a tank flange, and the spray device includes a nozzle, a transverse track and a longitudinal track. Two longitudinal tracks are provided, and the two longitudinal tracks are respectively fixed on the opposite sides of the tank flange. The transverse track is slidably connected to the longitudinal track along the length direction of the longitudinal track, and the nozzle is slidably connected to the transverse track along the length direction of the transverse track, and the nozzle is used to spray glue.

[0012] The turning device also includes a transmission bearing, a fixed frame includes a U-shaped frame and a frame frame formed by a square steel pipe, the frame frame is connected to the open end of the U-shaped frame, one end of the frame frame is rotatably connected to the U-shaped frame, and the other end is detachably connected to the U-shaped frame; the closed end of the U-shaped frame is fixedly connected to a first mounting shaft, and the end of the first mounting shaft is fixedly connected to a disk with an outer diameter greater than the first mounting shaft; a mounting block is fixedly provided on one side of the glue recovery tank, and a U-shaped slot is provided on the top of the mounting block, the slot includes an inner U-shaped slot and an outer U-shaped slot that are connected to each other, the outer U-shaped slot is located on the side of the inner U-shaped slot away from the inner wall of the glue recovery tank, the width of the inner U-shaped slot is greater than the width of the outer U-shaped slot, and the U-shaped slot is used to to connect with the fixed frame; the disc is inserted into the inner U-shaped groove, and the first mounting shaft is inserted into the outer U-shaped groove, and the width of the outer U-shaped groove is smaller than the outer diameter of the disc, so that the disc can be stably installed in the slot of the mounting block; the frame is connected with the second mounting shaft, and the second mounting shaft is provided with a fixed groove along its own radial direction; the transmission bearing is rotatably connected to the glue recovery groove, and one end of the transmission bearing extends into the glue recovery groove and the other end is located outside the glue recovery groove; the end of the transmission bearing extending into the glue recovery groove is provided with a protrusion, which is inserted into the fixed groove, and a pin is provided between the protrusion and the second mounting shaft, so that the fixed frame is rotatably connected to the inside of the glue recovery groove.

[0013] The fixing frame also includes fixing nails, and the honeycomb stack is pulled apart along the arrangement direction of the glass cloth by a traction belt, and at this time the bottom of the honeycomb stack is vacated, and one end of the frame frame is disassembled from the U-shaped frame, so that the U-shaped opening part of the U-shaped frame is directly opposite to the honeycomb stack, and the U-shaped frame is moved until the honeycomb stack is located in the opening of the U-shaped frame, and the frame frame is connected to the U-shaped frame to close the opening of the U-shaped frame; then a plurality of fixing nails are sequentially passed through the honeycomb holes of the honeycomb stack, and the fixing nails are located on the outer side of the U-shaped frame along the two ends parallel to the frame frame, and then the stretching device is disassembled from the honeycomb stack, and at this time the honeycomb stack and the fixing frame form a whole, and the stretched honeycomb stack is transferred to the fixing frame.

[0014] It also includes a material storage reflux device, which includes a material storage barrel. An upper interface is arranged on the side of the material storage barrel. The upper interface is connected with the diversion port of the glue recovery tank through a diversion pipe, so that the glue in the glue recovery tank can flow back to the material storage barrel through the diversion port and the diversion pipe.

[0015] A lower interface is arranged on the side of the material storage barrel, the lower interface is connected with a liquid inlet pipe, the other end of the liquid inlet pipe is connected to the spray device, and a pneumatic diaphragm pump is installed on the liquid inlet pipe.

[0016] The upper end surface of the material storage barrel is provided with an openable barrel cover.

[0017] A method for using a honeycomb automatic spraying and impregnation device, comprising:

[0018] Transfer the stretched honeycomb stack to the fixed frame;

[0019] Rotate the fixed frame to connect it to the glue recovery tank, and fix the sealing cover to the top of the glue recovery tank;

[0020] Add glue into the storage barrel and fix the barrel cover to the upper end surface of the storage barrel;

[0021] Start the spraying device, the glue liquid in the storage barrel is transported to the nozzle, and the glue liquid is sprayed onto the stretched honeycomb stack. At the same time, the excess glue liquid in the glue recovery tank flows back to the storage barrel from the diversion port and the diversion pipe;

[0022] Until the honeycomb stack is soaked in glue, the fixing frame and the honeycomb stack soaked in glue are taken out from the glue recovery tank as a whole, and placed in a high-temperature oven for curing to obtain a high-temperature resistant honeycomb core material.

[0023] After taking out the fixed frame and the honeycomb stack soaked in glue from the glue recovery tank, take out the glue in the storage barrel, then add the solvent into the storage barrel, disconnect the guide tube from the upper interface on the storage barrel, introduce the guide tube into the waste liquid barrel, turn on the power, and the solvent enters the nozzle through the guide tube. The sprayed solvent is sprayed on different parts of the glue recovery tank. The solvent gathers at the conical bottom of the glue recovery tank, and returns to the waste liquid barrel through the guide tube through the guide port to complete one cleaning. Repeat the above cleaning steps 2 to 4 times.

[0024] The present invention provides a honeycomb automatic spraying and impregnation device and a method for using the same, which bring beneficial technical effects:

[0025] (1) Through the honeycomb automatic spray impregnation design, the nozzle can move in both the vertical and horizontal directions within the plane, realizing spray impregnation without dead angles within the honeycomb surface. Combined with the honeycomb flip function design, the uniformity and controllability of honeycomb impregnation are effectively improved. With this design, the impregnation resin is replaced with a solvent to realize the self-cleaning function of the entire impregnation device.

[0026] (2) Through the design of self-purification and recycling of glue liquid, the amount of impregnation glue is greatly reduced, so the loss of honeycomb impregnation glue is greatly reduced, and the cost of high-temperature resistant honeycomb core materials is effectively controlled, which is conducive to the promotion of high-temperature resistant honeycomb core materials in high-end manufacturing fields such as aerospace and shipbuilding, and is also conducive to the development and improvement of new honeycombs.

[0027] (3) The entire honeycomb spray impregnation device is a fully sealed visual design, which is not only conducive to the observation of the honeycomb impregnation situation, but also the solvent is sealed in a closed environment during honeycomb impregnation and cleaning, and will not evaporate everywhere. This is significantly better than the traditional open impregnation process, improves the safety and environmental protection of the working environment, and is also beneficial to the health of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1A schematic diagram of the structure of a honeycomb automatic spraying device in a preferred embodiment of the present invention is shown;

[0029] Figure 2 A schematic diagram of the structure of a spray device unit in a preferred embodiment of the present invention is shown;

[0030] Figure 3 A schematic diagram of the structure of a flipping device unit in a preferred embodiment of the present invention is shown;

[0031] Figure 4 A schematic diagram of the structure of a storage material reflux device unit in a preferred embodiment of the present invention is shown;

[0032] Figure 5 A schematic diagram of the structure of the glue recovery tank unit in a preferred embodiment of the present invention is shown;

[0033] Figure 6 A schematic diagram of the structure of a rack unit in a preferred embodiment of the present invention is shown;

[0034] Figure 7 A schematic diagram of the structure of a sealing cover unit in a preferred embodiment of the present invention is shown;

[0035] Figure 8 It is a schematic diagram of the connection structure between the fixed frame and the glue recovery tank;

[0036] Fig. 9 It is the connection structure diagram of the fixed frame and the transmission bearing;

[0037] Fig.10 It is a schematic diagram of the overall installation structure of the fixing frame, honeycomb stacking blocks and fixing nails.

[0038] Explanation of the accompanying figures: 1-frame; 2-glue recovery tank; 3-spraying device; 4-sealing cover; 5-storage reflux device; 6-spray head; 7-turning device; 9-fixing frame; 10-transmission bearing; 11-handle; 12-storage barrel; 13-guide pipe; 14-pneumatic diaphragm pump; 15-square steel pipe; 16-roller; 17-tank body; 18-transverse track; 19-longitudinal track; 20-joint; 21-notch flange; 22-tank body slot; 23-guide port; 24-upper interface; 25-lower interface. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments disclosed in the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] The embodiment of the present application discloses a honeycomb automatic spray impregnation device, which is used for uniformly impregnating resin into a honeycomb block, wherein the honeycomb block is a glass cloth honeycomb core material, and the honeycomb block includes multiple layers of glass cloth connected in sequence, and two adjacent glass cloths are fixedly connected at designed node positions, and the nodes connected to the previous layer and the nodes connected to the next layer on the same layer of glass cloth are staggered, so that after the honeycomb block is pulled apart along the arrangement direction of the glass cloth, a structure with multiple hexagonal honeycombs is formed, and multiple traction belts are fixed on the glass cloth at both ends of the honeycomb block along the arrangement direction of the glass cloth.

[0041] like Figure 1 and Figure 2 As shown, the device includes a frame 1, a glue recovery tank 2, a spray device 3, a sealing cover 4, a turning device 7 and a storage material reflux device 5.

[0042] The glue recovery tank 2 is installed on the frame 1. The fixed frame 9 is horizontally rotatably connected to the glue recovery tank 2. The spray device 3 is installed on the glue recovery tank 2 and is located above the fixed frame 9. The sealing cover 4 is sealed with the tank flange 21 to seal the fixed frame 9 and the spray device 3 inside the glue recovery tank 2.

[0043] The frame 1 includes 22 square steel pipes 15 and 4 rollers 16. The plurality of square steel pipes form the frame shape, and 6 square steel pipes form a bracket for mounting and supporting the glue recovery tank 2. The rollers 16 are connected to the bottom of the frame 1 to facilitate the movement of the frame 1. Figure 6 shown.

[0044] The glue recovery tank 2 includes a tank body 17, a filter screen and a diversion port 23;

[0045] The spray device 3 includes a spray head 6, a transverse track 18, a longitudinal track 19 and an electric drive device;

[0046] The turning device 7 includes a fixing frame 9, a transmission bearing 10 and a handle 11;

[0047] The storage material reflux device 5 includes a storage material barrel 12, a flow guide pipe 13 and a pneumatic diaphragm pump 14;

[0048] The sealing cover 4 is composed of 5 transparent plastic plates, and handles are installed on both sides.

[0049] like Figure 5As shown, the tank body 17 of the glue recovery tank 2 is composed of a stainless steel plate, the top of the tank body 17 is open, and the bottom is tapered downward, so that the tank bottom is conical, and a conical bottom plate 26 is provided at the bottom of the tank body 17, and a guide port 23 is provided on the conical bottom plate 26, and the glue in the tank body 17 flows out from the guide port 23. A filter screen is placed on the conical bottom plate 26, and the filter screen holes are 100 mesh to 1000 mesh. The glue passes through the filter screen and gathers at the conical bottom, and flows out through the guide port 23. A tank body flange 21 is provided at the top edge of the tank body 17, and the tank body 17 is fixed to the frame 1 and the tank body flange 21 is placed on the upper surface of the bracket.

[0050] like Figure 3 and Figure 8 As shown, the fixed frame 9 includes a U-shaped frame and a frame frame formed of square steel pipes. The frame frame is connected to the open end of the U-shaped frame, and one end of the frame frame is rotatably connected to the U-shaped frame, and the other end is detachably connected to the U-shaped frame. The closed end of the U-shaped frame is fixedly connected to a first mounting shaft, and the end of the first mounting shaft is fixedly connected to a disc whose outer diameter is larger than the first mounting shaft. A mounting block is fixed to one side of the trough body, and a U-shaped slot 22 is provided on the top of the mounting block. The slot 22 includes an inner U-shaped slot and an outer U-shaped slot that are connected. The outer U-shaped slot is located on the side of the inner U-shaped slot away from the inner wall of the trough body 17. The width of the inner U-shaped slot is larger than the width of the outer U-shaped slot, and is used to connect with the fixed frame 9. The disc is inserted into the inner U-shaped slot, and the first mounting shaft is inserted into the outer U-shaped slot. The width of the outer U-shaped slot is smaller than the outer diameter of the disc, so that the disc can be stably installed in the slot 22 of the mounting block. As shown Fig. 9 As shown, the frame is connected with a second mounting shaft, and the second mounting shaft is provided with a fixing groove along its radial direction. The transmission bearing 10 is rotatably connected to the glue recovery tank 2, and one end of the transmission bearing 10 extends into the glue recovery tank 2, and the other end is located outside the glue recovery tank 2. The end of the transmission bearing 10 located outside the glue recovery tank 2 is connected to the handle 11, and the end of the transmission bearing 10 extending into the glue recovery tank 2 is provided with a protrusion, which is inserted into the fixing groove, and a pin is provided between the protrusion and the second mounting shaft. Through the above structure, one surface of the fixed frame 9 (i.e., the frame) can be opened for the transfer of the honeycomb stack, and the fixed frame 9 is rotatably connected to the inside of the glue recovery tank 2, and the space in the tank body 17 meets the fixed frame 9 and the flipping operation. By rotating the handle 11, the handle 11 drives the bearing 10 and the fixed frame 9, thereby realizing the flipping of the honeycomb.

[0051] like Figure 2As shown, two longitudinal tracks 19 are provided, and the two longitudinal tracks 19 are respectively fixed on opposite sides of the groove body flange 21, and the transverse track 18 is connected to the longitudinal track 19 in a sliding manner along the length direction of the longitudinal track 19, and the nozzle 6 is connected to the transverse track 18 in a sliding manner along the length direction of the transverse track 18, and the transverse track 18 is driven by the electric drive device to move along the length direction of the longitudinal track 19, and the nozzle 6 is driven by the electric drive device to move along the length direction of the transverse track 18, so as to realize the movement of the nozzle 6 in the plane. There are spray holes with a diameter of 0.1mm to 1mm on the nozzle 6, and the glue liquid is sprayed out of the spray hole in a mist state; a filter screen is arranged inside the nozzle 6, and the mesh size of the filter screen is 100 mesh to 1000 mesh to prevent solid particles in the glue liquid from clogging the spray hole.

[0052] like Figure 4 As shown, the storage barrel 12 is a cylindrical barrel made of stainless steel, with an openable barrel cover on the upper end surface. The barrel cover is opened when adding materials, and the barrel cover is fastened and sealed to the barrel body of the storage barrel 12 by 6 screws during operation. Two upper and lower connection ports are set on the side of the barrel body. The upper port 24 is connected to the flow guide port 23 of the glue recovery tank 2 through the flow guide pipe 13, and the lower port 25 is connected to the liquid inlet pipe, and the other end of the liquid inlet pipe is connected to the nozzle 6. The pneumatic diaphragm pump 14 is installed on the liquid inlet pipe. During operation, the diaphragm pump 14 provides power, and the glue in the storage barrel 12 is transported to the nozzle 6 through the liquid inlet pipe, and the pressure of the pneumatic diaphragm pump 14 is controlled by air pressure, thereby controlling the flow rate of the glue. The glue liquid sprayed from the nozzle 6 impregnates the honeycomb and then drips into the glue liquid recovery tank 2. The liquid level in the storage barrel 12 should be lower than the height of the diversion port. Due to the gravity difference, the glue liquid in the glue liquid recovery tank 2 flows back to the storage barrel 12 through the diversion port 23 and the diversion pipe 13, thereby realizing the recycling of the glue liquid.

[0053] like Figure 7 As shown, the sealing cover 4 is sealed and installed with the top opening of the tank body 17 , and the spray device 3 and the fixing frame 9 are in the space formed by the sealing cover 4 and the glue recovery tank 2 .

[0054] The nozzle 6 and the filter screen in the glue recovery tank 2 can be disassembled and replaced.

[0055] The non-metallic material parts such as the sealing cover 4 and the guide tube 13 made of transparent plastic plate should be resistant to corrosion by common solvents such as acetone, ethanol, ethyl acetate, tetrahydrofuran, N,N-dimethylformamide, etc.

[0056] This patent also provides a stretching device, which is used to pull the honeycomb block apart along the arrangement direction of the glass cloth through a traction belt, and at this time the bottom of the honeycomb block is vacated, and one end of the frame frame is disassembled from the U-shaped frame, so that the U-shaped opening of the U-shaped frame is facing the honeycomb block, and the U-shaped frame is moved until the honeycomb block is located in the opening of the U-shaped frame, and the frame frame is connected to the U-shaped frame to close the opening of the U-shaped frame; then a plurality of fixing nails are sequentially passed through the honeycomb holes of the honeycomb block, and the fixing nails are located on the outside of the U-shaped frame along the two ends parallel to the frame frame, and then the stretching device is disassembled from the honeycomb block. At this time, due to the rebound tension of the honeycomb block structure, the fixing nails are pressed against the outside of the two ends of the U-shaped frame, and the honeycomb block and the fixed frame 9 form a whole, completing the transfer of the stretched honeycomb block to the fixed frame 9, and then the fixed frame 9 is installed in the glue recovery tank 2. Fig.10 shown.

[0057] The stretching device includes a bottom bracket, a row of first fixing nails is fixed on the bottom bracket, a sliding rod is slidably connected to the bottom bracket, a row of second fixing nails is fixed on the sliding rod, and the second fixing nails are parallel to the first fixing nails. The traction belts at both ends of the honeycomb stack are sleeved on the first fixing nails and the second fixing nails, and then the sliding rod is moved in a direction away from the first fixing nails, and the honeycomb stack is pulled apart.

[0058] This embodiment also provides a method for using the honeycomb automatic spraying and impregnation device, comprising the following steps:

[0059] Transfer the stretched honeycomb stack to the fixed frame 9; connect the joint 20 at one end of the fixed frame 9 to the tank body 17 through the slot 22, and connect the joint at one end to the transmission bearing 10 through a pin, turn the handle 11 to adjust the honeycomb to the ideal position, and seal the sealing cover 4 and the tank body 17.

[0060] Use a tool to unscrew the screws on the upper cover of the glue storage barrel, open the upper cover, add the prepared glue solution into the storage barrel 12, and then tighten the screws to tighten and seal the barrel cover and the barrel body.

[0061] Turn on the power supply, the pneumatic diaphragm pump 14 provides power, the glue liquid in the storage barrel 12 is transported to the nozzle 6 through the guide tube 13, and the pressure of the pneumatic diaphragm pump 14 is controlled by air pressure, thereby controlling the flow rate of the glue liquid. The glue liquid sprayed from the nozzle 6 sprays and impregnates the honeycomb and then drips into the glue liquid recovery tank 2. Due to the gravity difference, the glue liquid in the glue liquid recovery tank 2 flows back to the storage barrel 12 through the guide port 23 and the guide tube 13, and the glue liquid is recycled to spray and impregnate the honeycomb. During the spraying process, the hand crank 11 turns the fixed frame 9 as needed to achieve uniform impregnation of the honeycomb.

[0062] After the spraying is completed, turn off the power supply, crank the handle 12 until the honeycomb in the fixing frame 9 no longer drips glue, and open the sealing cover 4 after the surface of the honeycomb is dry, and take out the fixing frame 9.

[0063] Take out the glue in the storage barrel 12, then add the solvent into the storage barrel 12, and seal the barrel cover and barrel body tightly. Disconnect the guide tube 13 from the upper interface 24 on the storage barrel 12, and introduce the guide tube 13 into the waste liquid barrel. After the sealing cover 4 and the tank body 17 are installed, turn on the power, and the solvent enters the nozzle 6 through the guide tube 13. The sprayed solvent is sprayed on different parts of the glue recovery tank 2. The solvent gathers at the conical bottom of the glue recovery tank 2, and returns to the waste liquid barrel through the guide tube 13 through the guide port 23. When all the solvent in the storage barrel 12 flows back to the waste liquid barrel, one cleaning is completed. After 2 to 4 cleanings, the cleaning of the spray device is completed.

[0064] The fixed frame 9 with the impregnated honeycomb is placed in a high-temperature oven for curing to obtain a high-temperature resistant honeycomb core material.

[0065] The contents not described in detail in this application specification belong to the common knowledge of those skilled in the art.

[0066] The present application is described in detail above in conjunction with specific implementation methods and exemplary examples, but these descriptions cannot be understood as limiting the present application. Those skilled in the art understand that, without departing from the spirit and scope of the present application, a variety of equivalent replacements, modifications or improvements can be made to the technical solution of the present application and its implementation methods, all of which fall within the scope of the present application. The scope of protection of the present application shall be subject to the attached claims.

Claims

1. A honeycomb automatic spraying and impregnation device, characterized in that: The invention comprises a frame (1), a glue liquid recovery tank (2), a spraying device (3), a sealing cover (4) and a turning device (7), wherein the glue liquid recovery tank (2) is fixedly connected to the frame (1), the turning device (7) comprises a fixing frame (9), the fixing frame (9) is used to fix the honeycomb stack that is pulled apart, the fixing frame (9) is horizontally rotatably connected to the glue liquid recovery tank (2), the spraying device (3) is installed in the glue liquid recovery tank (2) and is located above the turning device (7), and the spraying device (3) is used to spray glue; the sealing cover (4) is arranged on the top of the glue liquid recovery tank (2), so that the spraying device (3) and the turning device (7) are located in the sealed space formed by the glue liquid recovery tank (2) and the sealing cover (4).

2. The automatic honeycomb spraying and impregnation device according to claim 1, characterized in that: The top of the glue liquid recovery tank (2) is open and the bottom is tapered downward so that the bottom of the tank is conical, and a conical bottom plate (26) is provided at the bottom of the glue liquid recovery tank (2). The conical bottom plate (26) is provided with a guide port (23), and the glue liquid in the glue liquid recovery tank (2) flows out from the guide port (23).

3. The automatic honeycomb spraying and impregnation device according to claim 1, characterized in that: The top edge of the glue recovery tank (2) is provided with a tank flange (21), and the spray device (3) comprises a nozzle (6), a transverse track (18) and a longitudinal track (19), two longitudinal tracks (19) are provided, and the two longitudinal tracks (19) are respectively fixed on opposite sides of the tank flange (21), the transverse track (18) is slidably connected to the longitudinal track (19) along the length direction of the longitudinal track (19), and the nozzle (6) is slidably connected to the transverse track (18) along the length direction of the transverse track (18), and the nozzle (6) is used to spray glue.

4. The automatic honeycomb spraying and impregnation device according to claim 1, characterized in that: The flipping device (7) also includes a transmission bearing (10), the fixed frame (9) includes a U-shaped frame and a frame frame formed by a square steel pipe, the frame frame is connected to the open end of the U-shaped frame, one end of the frame frame is rotatably connected to the U-shaped frame, and the other end is detachably connected to the U-shaped frame; the closed end of the U-shaped frame is fixedly connected to a first mounting shaft, and the end of the first mounting shaft is fixedly connected to a disk with an outer diameter greater than the first mounting shaft; a mounting block is fixedly connected to one side of the glue recovery tank (2), and a U-shaped slot (22) is provided on the top of the mounting block, and the slot (22) includes an inner U-shaped slot and an outer U-shaped slot that are connected to each other, the outer U-shaped slot is located on the side of the inner U-shaped slot away from the inner wall of the glue recovery tank (2), the width of the inner U-shaped slot is greater than the width of the outer U-shaped slot, and is used to connect with the fixed frame ( 9) connection; the disc is inserted into the inner U-shaped groove, the first installation shaft is inserted into the outer U-shaped groove, the width of the outer U-shaped groove is smaller than the outer diameter of the disc, so that the disc can be stably installed in the slot (22) of the installation block; the frame is connected to the second installation shaft, and the second installation shaft is provided with a fixing groove along its own radial direction; the transmission bearing (10) is rotatably connected to the glue recovery groove (2), and one end of the transmission bearing (10) extends into the glue recovery groove (2) and the other end is located outside the glue recovery groove (2); the end of the transmission bearing (10) extending into the glue recovery groove (2) is provided with a protrusion, the protrusion is inserted into the fixing groove, and a pin is provided between the protrusion and the second installation shaft, so that the fixing frame (9) is rotatably connected to the glue recovery groove (2).

5. The automatic honeycomb spraying and impregnation device according to claim 4, characterized in that: The fixing frame (9) also includes fixing nails, and the honeycomb stack is pulled apart along the arrangement direction of the glass cloth by a traction belt, and at this time the bottom of the honeycomb stack is vacated, and one end of the frame frame is disassembled from the U-shaped frame, so that the U-shaped opening of the U-shaped frame is directly opposite to the honeycomb stack, and the U-shaped frame is moved until the honeycomb stack is located in the opening of the U-shaped frame, and the frame frame is connected to the U-shaped frame to close the opening of the U-shaped frame; then a plurality of fixing nails are sequentially passed through the honeycomb holes of the honeycomb stack, and the fixing nails are located on the outside of the U-shaped frame along the two ends parallel to the frame frame, and then the stretching device is disassembled from the honeycomb stack, and at this time the honeycomb stack and the fixing frame (9) form a whole, and the stretched honeycomb stack is transferred to the fixing frame (9).

6. The automatic honeycomb spraying and impregnation device according to claim 2, characterized in that: The invention also comprises a material storage reflux device (5), the material storage reflux device (5) comprising a material storage barrel (12), an upper interface (24) being arranged on the side of the material storage barrel (12), the upper interface (24) being connected to a flow guide port (23) of a glue liquid recovery tank (2) through a flow guide pipe (13), so that the glue liquid in the glue liquid recovery tank (2) flows back into the material storage barrel (12) through the flow guide port (23) and the flow guide pipe (13).

7. The automatic honeycomb spraying and impregnation device according to claim 6, characterized in that: A lower interface (25) is provided on the side of the material storage barrel (12), the lower interface (25) is connected to a liquid inlet pipe, the other end of the liquid inlet pipe is connected to the spray device (3), and a pneumatic diaphragm pump (14) is installed on the liquid inlet pipe.

8. The automatic honeycomb spraying and impregnation device according to claim 6, characterized in that: The upper end surface of the material storage barrel (12) is provided with an openable barrel cover.

9. A method for using a honeycomb automatic spraying and impregnation device according to any one of claims 1 to 8, characterized in that: include: Transferring the stretched honeycomb stack to a fixed frame (9); The fixing frame (9) is rotated and connected to the glue recovery tank (2), and the sealing cover (4) is fixed to the top of the glue recovery tank (2); Adding glue liquid into the storage barrel (12), and fixing the barrel cover to the upper end surface of the storage barrel (12); The spraying device (3) is started, and the glue liquid in the storage barrel (12) is transported to the spray head (6), and the glue liquid is sprayed onto the stretched honeycomb stack. At the same time, the excess glue liquid in the glue liquid recovery tank (2) flows back to the storage barrel (12) through the guide port (23) and the guide pipe (13); When the honeycomb blocks are soaked in glue, the fixing frame (9) and the honeycomb blocks soaked in glue are taken out from the glue recovery tank (2) as a whole, and placed in a high-temperature oven for curing to obtain a high-temperature resistant honeycomb core material.

10. The method for using the honeycomb automatic spraying and impregnation device according to claim 9, characterized in that: include: After the fixing frame (9) and the honeycomb stack soaked in glue are taken out from the glue recovery tank (2), the glue in the storage barrel (12) is taken out, and then the solvent is added into the storage barrel (12). The guide tube (13) is disconnected from the upper interface (24) on the storage barrel (12), and the guide tube (13) is introduced into the waste liquid barrel. The power is turned on, and the solvent enters the nozzle (6) through the guide tube (13). The sprayed solvent is sprayed on different parts of the glue recovery tank (2). The solvent gathers at the conical bottom of the glue recovery tank (2), and returns to the waste liquid barrel through the guide port (23) and the guide tube (13). One cleaning is completed, and the above cleaning steps are repeated 2 to 4 times.

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